German submarine U-338
Summary of raiding history

Date
Name
Nationality
Tonnage (GRT)
Fate
17 March 1943
Alderamin
Netherlands
7,886
Sunk
17 March 1943
Fort Cedar Lake
United Kingdom
7,134
Damaged
17 March 1943
Granville
Panama
4,071
Sunk
17 March 1943
King Gruffydd
United Kingdom
5,072
Sunk
17 March 1943
Kingsbury
United Kingdom
4,898
Sunk

Question: What British ships did the U-338 sink on March 17 and what were their tonnages?
Answer: On March 17, U-338 sank two British merchant ships: the 4,898 ton Kingsbury, and the 5,072 ton King Gruffydd.